from flask import current_app
from flask import g, jsonify
from flask import redirect
from flask import render_template
from flask import request
from flask import session
from info.utils.image_storage import image_storage
from info import constants, db
from info.models import News, Category, User

from info.utils.commons import user_login_data
from info.utils.response_code import RET
from . import profile_blue
# ××××××××××××××××××××××获取我的关注×××××××
@profile_blue.route("/user_follow")
@user_login_data
def user_follow():
    # 获取参数
    page = request.args.get("p", "1")
    # 参数类型转换
    try:
        page = int(page)
    except Exception as e:
        page = 1
    # 分页查询
    try:
        paginate = g.user.followed.paginate(page,2,False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR, errmsg = "查询失败")
    # 获取用户对象的属性，总页数，当前页，当前页对象列表
    totalPage = paginate.pages
    currentPage = paginate.page
    items = paginate.items
    # 新闻对象列表转成字典列表
    users_list = []
    for item in items:
        users_list.append(item.to_dict())

    # 返回数据渲染页面
    data = {
       "totalPage": totalPage,
        "currentPage": currentPage,
        "users_list": users_list
    }
    return render_template("news/user_follow.html", data = data)

# ××××××××××××××××××××××新闻列表展示×××××××
@profile_blue.route("/other_news_list")
def other_news_list():
    # 获取参数
    page = request.args.get("p",1)
    author_id = request.args.get("user_id")
    # 校验参数为空校验
    if not  author_id:
        return jsonify(errno = RET.PARAMERR, errmsg ="参数不全")
    try:
        page = int(page)
    except Exception as e:
        page = 1
    # 根据作者编号取出作者对象判断作者是否存在
    try:
        author = User.query.get(author_id)
    except Exception as  e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR, errmsg = "获取作者失败")
    if not author: return jsonify(errno = RET.NODATA, errmsg = "作者对象不存在")

    # 分页查询
    try:
        paginate = author.news_list.order_by(News.create_time.desc()).paginate(page, 3, False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR, errmsg = "获取新闻失败")
    # 获取分页对象属性，总页数，当前页，当前页对象列表
    total_page = paginate.pages
    current_page = paginate.page
    items = paginate.items
    # 将对象列表转成为字典列表
    news_list = []
    for item in items:
        news_list.append(item.to_dict())

    # 返回响应
    data = {
        "total_page":total_page,
        "current_page":current_page,
        "news_list":news_list
    }
    return jsonify(errno = RET.OK,errmsg = "获取成功", data = data)

# ××××××××××××××××××××××获取作者详情×××××××
@profile_blue.route("/other")
@user_login_data
def other():
    # 获取参数
    author_id = request.args.get("id")
    # 校验参数为空校验
    if not author_id:
        return jsonify(errno = RET.PARAMERR, errmsg = "参数不全")
    # 根据编号取出作者是对象，判断作者对象是否存在
    try:
        author = User.query.get(author_id)
    except Exception as e:
        current_app.logger.error(e)
        return  jsonify(errno = RET.DBERR, errmsg = "获取对象失败")
    if not author: return jsonify(errno = RET.NODATA, errmsg = "作者对象不存在")

    # 判断该用户是否关注过该作者
    is_followed = False
    if g.user:
        if g.user in author.followers:
            is_followed = True

    # 携带数据渲染页面
    data = {
        "author" : author.to_dict(),
        "user_info": g.user.to_dict() if g.user else "",
        "is_followed":is_followed
    }
    return render_template("news/other.html", data = data)
# ××××××××××××××××××新闻发布列表××××××××
@profile_blue.route("/news_list")
@user_login_data
def news_list():
    # 获取参数
    page = request.args.get("p", "1")
    # 转换类型
    try:
        page = int(page)
    except Exception as e:
        page = 1
    # 分页查询
    try:
        paginate = News.query.filter(News.user_id == g.user.id).order_by(News.create_time.desc()).paginate(page,3,False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR, errmsg = "获取新闻失败")
    # 获取分页对象属性，总页数，当前页，对象列表
    totalPage = paginate.pages
    currentPage = paginate.page
    items = paginate.items
    # 对象列表转换成字典列
    news_list = []
    for item in items:
        news_list.append(item.to_review_dict ())
    # 拼接数据渲染页面
    data = {
        "totalPage":totalPage,
        "currentPage":currentPage,
        "news_list":news_list
    }
    return render_template("news/user_news_list.html", data = data)
# ××××××××××××××××××图片上传×××××××××××
@profile_blue.route("/pic_info", methods = ["GET","POST"])
@user_login_data
def pic_info():
    # 判断是GET请求返回数据渲染页面
    if request.method == "GET":
        return render_template("news/user_pic_info.html", user = g.user.to_dict())
    # 判断是POST请求、获取参数
    avatar = request.files.get("avatar")
    # 校验参数为空校验
    if not avatar:
        return jsonify(errno = RET.PARAMERR, errmsg = "参数不全")
    # 上传图片，判断图片是否上传成功
    try:
        image_name = image_storage(avatar.read())
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.THIRDERR, errmsg = "七牛云异常")
    if not image_name: return jsonify(errno = RET.NODATA, errmsg = "图片上传失败")
    # 设置图片到用户对象
    g.user.avatar_url = image_name
    # 返回响应，返回图片地址
    data = {
        "avatar_url":constants.QINIU_DOMIN_PREFIX+image_name
    }
    return jsonify(errno = RET.OK, errmsg = "上传成功", data = data)

# ××××××××××××××新闻发布×××××××××××××
@profile_blue.route("/news_release", methods = ["GET", "POST"])
@user_login_data
def news_release():
    # 判断是GET 携带数据渲染页面
    if request.method == "GET":
    # 查询所有分类
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)
            return jsonify(errno = RET.DBERR, errmsg = "获取分类失败")
    # 对象列表转成字典列表
        category_list = []
        for category in categories:
            category_list.append(category)
        return render_template("news/user_news_release.html", categories = category_list)
    # 如果是POST请求 获取参数
    title = request.form.get("title")
    category_id = request.form.get("category_id")
    digest = request.form.get("digest")
    index_image = request.files.get("index_image")
    content = request.form.get("content")
    # 校验参数，为空校验
    if not all([title,category_id,digest,index_image,content]):
        return jsonify(errno = RET.PARAMERR,errmsg ="参数不全")
    # 上传图片判断图片是否存在
    try:
        image_name = image_storage(index_image.read())
    except Exception as e:
        current_app.logger.error(e)
        return  jsonify (errno = RET.THIRDERR, errmsg = "七牛云上传图片失败")
    if not image_name: return jsonify(errno = RET.NODATA, errmsg = "图片上传失败")
    # 创建新闻对象，设置属性
    news = News()
    news.title = title
    news.source = g.user.nick_name
    news.digest = digest
    news.content = content
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + image_name
    news.category_id = category_id
    news.user_id = g.user.id
    news.status = 1 #审核中
    # 保存到数据库
    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno = RET.DBERR, errmsg = "新闻发布失败" )
    # 返回响应
    return jsonify(errno = RET.OK, errmsg = "发布成功")
# ****************我的收藏******************
@profile_blue.route("/collection")
@user_login_data
def collection():
    # 获取参数
    page = request.args.get("p", "1")
    # 参数类型转换
    try:
        page = int(page)
    except Exception as e:
        page = 1
    # 分页查询
    try:
        paginate = g.user.collection_news.order_by(News.create_time.desc()).paginate(page, constants.USER_COLLECTION_MAX_NEWS,False)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DBERR, errmsg = "查询失败")
    # 获取分页对象的属性，总页数，当前页，当前页对象列表
    totalPage = paginate.pages
    currentPage = paginate.page
    items = paginate.items
    # 新闻对象列表转成字典列表
    news_list = []
    for item in items:
        news_list.append(item.to_dict())

    # 返回数据渲染页面
    data = {
       "totalPage": totalPage,
        "currentPage": currentPage,
        "news_list": news_list
    }
    return render_template("news/user_collection.html", data = data)

# ****************修改密码******************
@profile_blue.route("/pass_info", methods = ["GET", "POST"])
@user_login_data
def pass_info():
    # 判断是GET请求
    if request.method == "GET":
        return render_template("news/user_pass_info.html")
    # 判断是POST请求
    # 获取请求参数
    old_password = request.json.get("old_password")
    new_password = request.json.get("new_password")
    # 校验参数为空校验
    if not all([old_password, new_password]):
        return jsonify(errno = RET.PARAMERR, errmsg = "参数不全")
    # 判断旧密码是否正确
    if not g.user.check_password(old_password):
        return jsonify(errno = RET.DATAERR, errmsg = "旧密码错误")
    # 设置新密码到用户
    g.user.password = new_password
    # 退出登陆
    session.pop("user_id", None)
    session.pop("nick_name", None)
    session.pop("moblie", None)
    # 返回响应
    return jsonify(errno = RET.OK, errmsg = "修改成功")
# *****************基本资料展示**************
@profile_blue.route("/base_info",methods = ["GET","POST"])
@user_login_data
def base_info():
    # 判断是GET请求，携带用户渲染页面
    if request.method == "GET":
        return render_template("news/user_base_info.html", user = g.user.to_dict())
    # 判断是POST请求，获取参数
    if request.method == "POST":
        signature = request.json.get("signature")
        nick_name = request.json.get("nick_name")
        gender = request.json.get("gender")
    # 校验参数
    if not all([signature,nick_name,gender]):
        return jsonify(errno = RET.PARAMERR ,errmsg = "参数不全")
    # 校验性别
    if not gender in ["MAN", "WOMAN"]:
        return jsonify(errno = RET.DATAERR, errmsg = "性别异常")
    # 更新数据到用户
    try:
        g.user.signature = signature
        g.user.nick_name = nick_name
        g.user.gender = gender
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno = RET.DATAERR, errmsg = "修改失败")

    # 返回响应
    return jsonify(errno = RET.OK, errmsg = "修改成功")
# 用户界面展示
@profile_blue.route("/info")
@user_login_data
def user_info():
    # 判断用户是否登陆
    if not g.user:
        return redirect("/")
    # 携带用户渲染页面
    data = {
        "user_info" : g.user.to_dict()
    }
    return render_template("news/user.html",data = data)